CVE-2018-8034
tomcat: Host name verification missing in WebSocket client
Severity
LowRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · July 22, 2018
Updated · August 5, 2026
Description
The host name verification when using TLS with the WebSocket client was missing. It is now enabled by default. Versions Affected: Apache Tomcat 9.0.0.M1 to 9.0.9, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, and 7.0.35 to 7.0.88.
Statement
Tomcat 6, and Red Hat products shipping it, are not affected by this CVE. Tomcat 7, 8, and 9, as well as Red Hat Products shipping them, are affected. Affected products, including Red Hat JBoss Web Server 3 and 5, Enterprise Application Server 6, and Fuse 7, may provide fixes for this issue in a future release.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 4.3CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CWE-20 · Improper Input Validation